# Title     : TODO
# Objective : TODO
# Created by: masaikk
# Created on: 2020/12/9


#v<-1:10
#print(v)

a <- c(1,2,3,4,5)
print(a[2])
#开始反程序员

b <-c(1,1,4,5,1,4,1,9,1,9)
sort(b)
b[order(b)]

sd(b)
#标准差
